CN111215322A - An automatic high-precision sand screening device for building material synthesis production - Google Patents

An automatic high-precision sand screening device for building material synthesis production Download PDF

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Publication number
CN111215322A
CN111215322A CN201911226509.7A CN201911226509A CN111215322A CN 111215322 A CN111215322 A CN 111215322A CN 201911226509 A CN201911226509 A CN 201911226509A CN 111215322 A CN111215322 A CN 111215322A
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CN
China
Prior art keywords
screening
sand
fixedly connected
automatic high
sand box
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CN201911226509.7A
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Chinese (zh)
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CN111215322B (en
Inventor
梁山军
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Boxing Xingbo Urban Construction Investment Group Co ltd
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Individual
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Priority to CN202011256363.3A priority Critical patent/CN112474311B/en
Priority to CN201911226509.7A priority patent/CN111215322B/en
Publication of CN111215322A publication Critical patent/CN111215322A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/34—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen
    • B07B1/343—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen with mechanical drive elements other than electromagnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
    • B02C18/10—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged above container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/32—Filling devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention relates to the technical field of building material processing, and discloses an automatic high-precision sand screening device for building material synthesis production. Drive the cam through the output shaft and carry out intermittent type's extrusion to the screening board, gas in the slide bar compression sleeve gets into the gasbag through the second check valve, the screening board resets and strikes the pendulum, the pendulum drives U type pole vibration, coil cutting magnetic induction line on the U type pole produces electric current, the electric current forms magnetic field through the coil of coil lower extreme, magnetic field promotes magnetic path reciprocating motion in the sliding tray, gas in the gasbag passes through the through-hole blowout, the problem that current screening sand device sieve easily blockked up and work efficiency is low is solved to this structure.

Description

Automatic high-precision sand screening device for building material synthesis production
Technical Field
The invention relates to the technical field of building material processing, in particular to an automatic high-precision sand screening device for building material synthesis production.
Background
Building materials used in buildings are collectively referred to as building materials. The novel building materials have a wide range, and include heat insulation materials, high-strength materials, breathable materials and the like. The building materials are a general term for materials used in civil engineering and construction work. The sand is a common building construction material in the building construction process, is also a necessary material for synthesizing other building materials, and generally needs to be screened before the sand is used.
Current sand screening is generally through artifical screening, a large amount of manpowers have not only been wasted, and the screening efficiency is low, and current automatic sand sieving mechanism, reciprocate through removing the sieve, adopt the brush to promote great sand on the sieve simultaneously, thereby avoid the sieve to be blockked up, but along with constantly piling up of great sand, can influence the flow velocity of fine sand, thereby influence work efficiency, long-time work probably leads to the inside whole jam of device, still need set up extra big husky device in addition, we have proposed an automatic high accuracy screening sand device of building material synthesis production usefulness in order to solve this problem.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an automatic high-precision sand screening device for building material synthesis production, which has the advantages of avoiding the blockage of a screen plate and improving the working efficiency and solves the problems of easy blockage of the screen plate and low working efficiency of the traditional sand screening device.
(II) technical scheme
In order to achieve the purposes of avoiding the blockage of the sieve plate and improving the working efficiency, the invention provides the following technical scheme: an automatic high-precision sand screening device for building material synthesis production comprises a sand screening box, wherein rotary columns are arranged on the left side and the right side of the inside of the sand screening box, an inclined plane is arranged on the lower side of the inside of the sand screening box, an air inlet pipe is arranged on the left side of the lower portion of the sand screening box, an arc-shaped groove is arranged on the lower portion of the sand screening box and under the inclined plane, support legs are fixedly connected to the lower end of the sand screening box, a funnel is fixedly connected to the upper end of the sand screening box, a rotating shaft is arranged inside the funnel, a spiral blade is fixedly connected to the outer side of the upper portion of the rotating shaft, a blade is arranged on the outer side of the lower portion of the rotating shaft, an output shaft is rotatably connected to the rear side wall of the inside of the sand screening box, a cam is fixedly connected to the outer side of the output shaft, pendulum bob bodies are rotatably connected to the left side and the right side of the sand screening box, a second spring is fixedly connected to the left side and the right side of the sand screening box and the inner side of the first spring, a screening plate is fixedly connected to the upper end of the second spring, a circular groove is formed in the screening plate, an air injection device is connected in the circular groove in a sliding manner and in the screening plate, an air injection port is formed in the air injection device, a connecting plate is fixedly connected to the lower end of the air injection device, a third spring is arranged between the screening plate and the connecting plate, a sliding rod is fixedly connected to the lower end of the screening plate, an air outlet pipe is formed in the sliding rod, a sleeve is connected to the outer side of the lower portion of the sliding rod in a sliding manner and on the inclined surface, a first one-way valve is arranged in the sand screening box and in the air inlet pipe, a control device is arranged in the middle of the sand screening box and under the air outlet pipe, a sliding groove is formed, the lower end of the control device is fixedly connected with the air bag in the arc-shaped groove, the moving block is connected to the inside of the control device in the sliding groove in a sliding mode, a second one-way valve is arranged in the middle of the moving block, through holes are formed in the left side and the right side of the second one-way valve in the moving block, magnetic blocks are fixedly connected to the inside of the moving block in the outer side of the through holes, and a fourth spring is arranged between the magnetic blocks and the positioning block.
Preferably, the blade gradually increases in diameter from top to bottom, thereby ensuring that the sand is broken up and broken apart.
Preferably, the front wall and the rear wall of the U-shaped rod are provided with a magnet group on the sand screening box, so that the current generated by the coil cutting magnetic induction line acts on the lower end of the U-shaped rod.
Preferably, the pendulum, the U-shaped rod and the first spring are mutually adaptive, namely when the pendulum, the U-shaped rod and the first spring are balanced when the pendulum, the U-shaped rod and the first spring are not in operation, and the U-shaped rod is in a horizontal state.
Preferably, the direction of the air injection ports is horizontal and is uniformly arranged at the upper part of the air injection device.
Preferably, the screening plate is provided with a hole matched with the air injection device, so that the air injection device is ensured to slide in the screening plate.
Preferably, the current directions of the left coil and the right coil are different, and the magnetic field directions of the left magnetic block and the right magnetic block are also different, so that the coils can push the magnetic blocks to move left and right, and the moving block is further driven to move left and right.
Preferably, the screening plate is provided with sand leaking holes with the diameter increasing from outside to inside, the upper surface of each sand leaking hole is arc-shaped, and large-particle sand or sand clusters are guaranteed to be gathered in the middle of the screening plate in the vivid process of the screening plate.
(III) advantageous effects
Compared with the prior art, the invention provides an automatic high-precision sand screening device for building material synthesis production, which has the following beneficial effects:
1. this automatic high accuracy screening sand device of building material synthetic production usefulness through pouring the sand in to the funnel, and the spiral leaf is pushed down to the sand under the effect of its gravity, and the spiral leaf drives the blade through the pivot and breaks up sand group, and evenly scatters on the sieve plate through the centrifugation of blade, and this structure has reached and has utilized sand gravity to accomplish the automatic effect of breaing up to extra setting up of breaking up the device has been avoided.
2. The automatic high-precision sand screening device for building material synthesis production drives an output shaft to rotate through a driving device, the output shaft drives a cam to intermittently extrude a screening plate, the screening plate drives a sliding rod to move downwards, gas in a sliding rod compression sleeve enters an air bag through a second one-way valve, when the screening plate is reset under the action of a second spring, due to the inertia of the screening plate, the screening plate impacts a pendulum bob, the pendulum bob drives a U-shaped rod to vibrate, a coil on the U-shaped rod cuts a magnetic induction line to generate current, the generated current forms a magnetic field through a coil at the lower end of the coil, the current in the coil is alternating current, the magnetic field is formed to push a magnetic block to reciprocate in a sliding groove, the gas in the air bag is sprayed out through a through hole, in addition, due to the vibration of the screening plate, an air spraying device extrudes a third spring to move upwards, and an air spraying port leaks to blow, thereby make it sieve out from the hourglass husky mouth of screening plate periphery, this structure has reached and has refined the effect of just screening it to large granule sand to solve the problem that current screening sand device sieve easily blockked up and work efficiency is low.
3. This automatic high accuracy screening sand device of building material synthetic production usefulness, through set up on the screening board from the outside to the inside diameter sand that leaks the sub-hole that becomes bigger and bigger, and the upper surface is the arc, guarantees the middle part of large granule sand or the gathering of sand group at the screening board at the vivid in-process of screening board to the cam of being convenient for rolls, this structure reaches the effect of refining large granule sand.
4. This automatic high accuracy screening sand device of building material synthetic production usefulness all connects air jet system through the connecting plate to guarantee that the cam from contacting with the screening plate and leaving, whole air jet system is all extrudeed, thereby avoids air jet system to be leaded to the scratch by the initial inertia of cam, and has avoided the gas in the sleeve to spout from the jet orifice.
5. This automatic high accuracy screening sand device of building material synthesis production usefulness, U type pole through setting up is the U shape, and it is towards the screening board, when screening board and pendulum collide, the screening board transmits in the recess of U type pole with the sound energy that the pendulum produced, and make it take place vibrations, pendulum vibration transmission gives U type pole simultaneously, the frequency of same vibration source is the same, this structure has not only avoided the waste of sound energy, and make U type pole reach resonant effect, thereby the vibration intensity of U type pole has been guaranteed, the further promotion dynamics in coil lower part magnetic field, thereby vibration difference when having increased cam and screening board contact, thereby make when cam and screening board contact, the through-hole does not coincide with controlling means's venthole, the effect that the gas in the gasbag did not run out, and then guarantee the inflation of gasbag.
Drawings
FIG. 1 is a sectional view of the overall front structure of the present invention;
FIG. 2 is an enlarged view of the structure of FIG. 1 at A according to the present invention;
FIG. 3 is an enlarged view of the structure of FIG. 1 at B according to the present invention;
FIG. 4 is an enlarged view of the structure of FIG. 1 at C according to the present invention;
fig. 5 is a partial sectional view of the front structure of the control device of the present invention.
In the figure: 1 sand screening box, 101 rotating columns, 102 inclined planes, 103 air inlet pipes, 104 arc-shaped grooves, 2 feet, 3 funnels, 4 rotating shafts, 401 spiral blades, 402 blades, 5 output shafts, 6 cams, 7 pendulums, 8U-shaped rods, 9 coils, 10 first springs, 11 second springs, 12 screening plates, 1201 circular grooves, 13 air injection devices, 1301 air injection ports, 14 connecting plates, 15 third springs, 16 sliding rods, 1601 air outlet pipes, 17 sleeves, 18 first check valves, 19 control devices, 1901 sliding grooves, 1902 positioning blocks, 20 air bags, 21 moving blocks, 2101 second check valves, through holes, 2103 magnetic blocks and 22 fourth springs.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1-5, an automatic high-precision sand sieving device for building material synthesis production comprises a sand sieving box 1, wherein rotating columns 101 are arranged on the left and right sides of the inside of the sand sieving box 1, an inclined plane 102 is arranged on the lower side of the inside of the sand sieving box 1, an air inlet pipe 103 is arranged on the left side of the lower part of the sand sieving box 1, an arc-shaped groove 104 is arranged on the lower part of the sand sieving box 1 and under the inclined plane 102, supporting legs 2 are fixedly connected to the lower end of the sand sieving box 1, a funnel 3 is fixedly connected to the upper end of the sand sieving box 1, a rotating shaft 4 is arranged inside the funnel 3, a spiral blade 401 is fixedly connected to the outer side of the upper part of the rotating shaft 4, a blade 402 is arranged on the outer side of the lower part of the rotating shaft 4, and the diameter. The inside back lateral wall of screening sand case 1 rotates and is connected with output shaft 5, the outside fixedly connected with cam 6 of output shaft 5, the left and right sides of screening sand case 1 just rotates on rotary column 101 and is connected with pendulum 7, the lower extreme fixedly connected with U type pole 8 of pendulum 7, the inboard end fixedly connected with coil 9 of U type pole 8, the preceding back wall of U type pole 8 just is provided with magnet group on screening sand case 1, thereby guarantee that the electric current that coil 9 cutting magnetic induction line produced acts on its lower extreme. A first spring 10 is connected between the lower end of the U-shaped rod 8 and the sand screening box 1 in a specified mode, and the pendulum 7, the U-shaped rod 8 and the first spring 10 are adaptive to each other, namely when the pendulum, the U-shaped rod 8 and the first spring are not in work and keep balance, the U-shaped rod 8 is in a horizontal state. The left side and the right side of the sand screening box 1 are fixedly connected with a second spring 11 at the inner side end of a first spring 10, the upper end of the second spring 11 is fixedly connected with a screening plate 12, and a circular groove 1201 is formed in the screening plate 12.
The inside of screening plate 12 and sliding connection has air jet system 13 in circular slot 1201, and air jet system 13's inside has been seted up air jet 1301, and the direction of air jet 1301 is the horizontal direction, and evenly sets up on the upper portion of air jet system 13, has seted up the hole that suits with air jet system 13 on the screening plate 12 to guarantee that air jet system 13 slides in screening plate 12. The lower end of the air injection device 13 is fixedly connected with a connecting plate 14, a third spring 15 is arranged between the screening plate 12 and the connecting plate 14, the lower end of the screening plate 12 is fixedly connected with a sliding rod 16, an air outlet pipe 1601 is arranged inside the sliding rod 16, a sleeve 17 is connected on the outer side of the lower part of the sliding rod 16 and on the inclined plane 102 in a sliding manner, a first one-way valve 18 is arranged inside the screening sand box 1 and inside the air inlet pipe 103, a control device 19 is arranged in the middle of the screening sand box 1 and under the air outlet pipe 1601, a sliding groove 1901 is arranged in the middle of the control device 19, positioning blocks 1902 are arranged inside the control device 19 and on the left side and the right side inside the sliding groove 1901, an air bag 20 is fixedly connected at the lower end of the control device 19 and inside the arc-shaped groove 104, a moving block 21 is connected inside the control device 19 and in the sliding groove 1901 in a sliding manner, a second one-way valve 2101 is arranged in, the inside of movable block 21 and all fixedly connected with magnetic path 2103 in the outside of through-hole 2102, the current direction of controlling coil 9 is different, and the magnetic field direction of controlling magnetic path 2103 is also different to guarantee that coil 9 promotes the magnetic path 2103 and removes, further drive movable block 21 and remove. A fourth spring 22 is arranged between the magnetic block 2103 and the positioning block 1902.
The working principle is as follows: this automatic high accuracy screening sand device of building material synthetic production usefulness, at the during operation, through pouring the sand into funnel 3, the spiral leaf 401 is pushed down to the sand under the effect of its gravity, and spiral leaf 401 drives blade 402 through pivot 4 and breaks up the sand ball, and evenly scatters on screening plate 12 through the centrifugation of blade 402, and this structure has reached and has utilized sand gravity to accomplish the automatic effect of breaing up to extra setting of breaking up the device has been avoided. The output shaft 5 is driven to rotate by the driving device, the output shaft 5 drives the cam 6 to intermittently extrude the screening plate 12, the screening plate 12 drives the sliding rod 16 to move downwards, the sliding rod 16 compresses the gas in the sleeve 17 and enters the air bag 20 through the second one-way valve, when the screening plate 12 is reset under the action of the second spring 11, due to the inertia of the screening plate 12, the screening plate 12 impacts the pendulum bob 7, the pendulum bob 7 drives the U-shaped rod 8 to vibrate, the coil 9 on the U-shaped rod 8 cuts the magnetic induction line to generate current, the generated current forms a magnetic field through the coil at the lower end of the coil 9, as the current in the coil 9 is alternating current, the magnetic field is formed to push the magnetic block 2103 to reciprocate in the sliding groove 1901, at the moment, the gas in the air bag 20 is sprayed out through the through hole 2102, in addition, due to the vibration of the screening plate 12, the air spraying device 13 extrudes the third spring 15 to move upwards, and the air nozzle 1301 leaks, thereby make it sieve out from the hourglass husky mouth in the screening plate 12 periphery, this structure has reached and has refined the effect of its screening to large granule sand to solve the easy problem of blockking up and work efficiency is low of current screening sand device sieve. Set up from outside to the increasing sand leakage hole of internal diameter through screening plate 12 on, and the upper surface is the arc, guarantees the sand of large granule or the gathering of sand group at the middle part of screening plate at the vivid in-process of screening plate 12 to be convenient for rolling of cam 6, this structure reaches the effect of refining large granule sand. The connecting plates 14 are connected with the air injection devices 13, so that the cams 6 are guaranteed to leave from contacting the screening plate 12, the whole air injection devices 13 are extruded, the air injection devices 13 are prevented from being scratched by the initial inertia of the cams 6, and the air in the sleeve 17 is prevented from being sprayed out from the air injection ports 1301. U type pole 8 through setting up is the U-shaped, and it is towards screening board 12, when screening board 12 collides with pendulum 7, screening board 12 transmits the sound energy that pendulum 7 produced in the recess of U type pole 8, and make it take place vibrations, pendulum 7 vibration transmission gives U type pole 8 simultaneously, the frequency of same vibration source is the same, this structure has not only avoided the waste of sound energy, and make U type pole 8 reach resonant effect, thereby the vibration intensity of U type pole 8 has been guaranteed, further the promotion dynamics in coil 9 lower part magnetic field, thereby vibration difference when having increased cam 6 and screening board 12 contact, thereby when making cam 6 and screening board 12 contact, through-hole 2102 and controlling means 19's venthole do not coincide, the effect that the gas in the gasbag 20 did not run out, and then guarantee the inflation of gasbag 20.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1.一种建筑材料合成生产用的自动高精度筛沙装置，包括筛沙箱(1)，其特征在于：所述筛沙箱(1)的内部左右两侧均设置有转柱(101)，筛沙箱(1)的内部下侧设置有斜面(102)，筛沙箱(1)的下部左侧开设有进气管(103)，筛沙箱(1)的下部且在斜面(102)的正下方开设有弧形槽(104)，筛沙箱(1)的下端固定连接有支脚(2)，筛沙箱(1)的上端固定连接有漏斗(3)，漏斗(3)的内部设置有转轴(4)，转轴(4)的上部外侧固定连接有螺旋叶(401)，转轴(4)的下部外侧设置有刀片(402)，筛沙箱(1)的内部后侧壁转动连接有输出轴(5)，输出轴(5)的外侧固定连接有凸轮(6)，筛沙箱(1)的左右两侧且在转柱(101)上转动连接有摆锤(7)，摆锤(7)的下端固定连接有U型杆(8)，U型杆(8)的里侧端固定连接有线圈(9)，U型杆(8)的下端与筛沙箱(1)之间规定连接有第一弹簧(10)，筛沙箱(1)的左右两侧且在第一弹簧(10)的里侧端固定连接有第二弹簧(11)，第二弹簧(11)的上端固定连接有筛选板(12)，筛选板(12)的内部开设有圆形槽(1201)，筛选板(12)的内部且在圆形槽(1201)内滑动连接有喷气装置(13)，喷气装置(13)的内部开设有喷气口(1301)，喷气装置(13)的下端固定连接有连接板(14)，筛选板(12)与连接板(14)之间设置有第三弹簧(15)，筛选板(12)的下端固定连接有滑动杆(16)，滑动杆(16)的内部开设有出气管(1601)，滑动杆(16)的下部外侧且在斜面(102)上滑动连接有套筒(17)，筛沙箱(1)的内部且在进气管(103)的内部设置有第一单向阀(18)，筛沙箱(1)中部且在出气管(1601)的正下方设置有控制装置(19)，控制装置(19)的中部开设有滑动槽(1901)，控制装置(19)的内部且在滑动槽(1901)内的左右两侧设置有定位块(1902)，控制装置(19)的下端且在弧形槽(104)内固定连接有气囊(20)，控制装置(19)的内部且在滑动槽(1901)内滑动连接有移动块(21)，移动块(21)的中部设置有第二单向阀(2101)，移动块(21)的内部且在第二单向阀(2101)的左右两侧均开设有通孔(2102)，移动块(21)的内部且在通孔(2102)的外侧均固定连接有磁块(2103)，磁块(2103)与定位块(1902)之间设置有第四弹簧(22)。1. an automatic high-precision sand screening device for building material synthesis production, comprising a screening sand box (1), characterized in that: the inner left and right sides of the screening sand box (1) are provided with rotating columns (101) , the inner lower side of the sieve sand box (1) is provided with a slope (102), the lower left side of the sieve sand box (1) is provided with an air intake pipe (103), and the lower part of the sieve sand box (1) is arranged on the slope (102) An arc-shaped groove (104) is opened directly below the sieve sand box (1), a foot (2) is fixedly connected to the lower end of the sieve sand box (1), a funnel (3) is fixedly connected to the upper end of the sieve sand box (1), and the inside of the funnel (3) A rotating shaft (4) is provided, the upper outer side of the rotating shaft (4) is fixedly connected with a helical blade (401), the lower outer side of the rotating shaft (4) is provided with a blade (402), and the inner rear side wall of the screen sand box (1) is rotatably connected There is an output shaft (5), a cam (6) is fixedly connected to the outside of the output shaft (5), and a pendulum (7) is rotatably connected to the left and right sides of the sieve sand box (1) on the rotating column (101). The lower end of the hammer (7) is fixedly connected with a U-shaped rod (8), the inner end of the U-shaped rod (8) is fixedly connected with a coil (9), and the lower end of the U-shaped rod (8) is connected to the screen sand box (1). A first spring (10) is provided between the two sides, and a second spring (11) is fixedly connected to the left and right sides of the sieve sand box (1) and the inner end of the first spring (10). A screening plate (12) is fixedly connected to the upper end, a circular groove (1201) is opened inside the screening plate (12), and an air jet device (13) is slidably connected inside the screening plate (12) in the circular groove (1201). , the inside of the jet device (13) is provided with a jet port (1301), the lower end of the jet device (13) is fixedly connected with a connecting plate (14), and a third spring is provided between the screening plate (12) and the connecting plate (14) (15), the lower end of the screening plate (12) is fixedly connected with a sliding rod (16), the inside of the sliding rod (16) is provided with an air outlet pipe (1601), and the lower outer side of the sliding rod (16) is on the inclined plane (102) A sleeve (17) is slidably connected, a first one-way valve (18) is arranged inside the sieve sand box (1) and inside the air inlet pipe (103), in the middle of the sieve sand box (1) and in the air outlet pipe (1601) ) is provided with a control device (19), a sliding groove (1901) is provided in the middle of the control device (19), and positioning blocks are provided inside the control device (19) and on the left and right sides of the sliding groove (1901). (1902), the lower end of the control device (19) is fixedly connected with the airbag (20) in the arc-shaped groove (104), and the inside of the control device (19) is slidably connected in the sliding groove (1901) with a moving block (21) ), a second one-way valve (2101) is arranged in the middle of the moving block (21), and through holes (2102) are opened inside the moving block (21) and on the left and right sides of the second one-way valve (2101), A magnetic block (2103) is fixedly connected inside the moving block (21) and outside the through hole (2102), the magnetic block (2103) and the positioning block (190) 2) A fourth spring (22) is arranged between. 2.根据权利要求1所述的一种建筑材料合成生产用的自动高精度筛沙装置，其特征在于：所述刀片(402)从上往下直径逐渐变大。2 . The automatic high-precision sand screening device for synthetic production of building materials according to claim 1 , wherein the diameter of the blade ( 402 ) gradually increases from top to bottom. 3 . 3.根据权利要求1所述的一种建筑材料合成生产用的自动高精度筛沙装置，其特征在于：所述U型杆(8)的前后壁且在筛沙箱(1)上设置有磁铁组。3. The automatic high-precision sand screening device for synthetic production of building materials according to claim 1, characterized in that: the front and rear walls of the U-shaped rod (8) are provided with a sand screening box (1). Magnet set. 4.根据权利要求1所述的一种建筑材料合成生产用的自动高精度筛沙装置，其特征在于：所述摆锤(7)、U型杆(8)和第一弹簧(10)之间相互适应。4. The automatic high-precision sand screening device for synthetic production of building materials according to claim 1, characterized in that: among the pendulum (7), the U-shaped rod (8) and the first spring (10) adapt to each other. 5.根据权利要求1所述的一种建筑材料合成生产用的自动高精度筛沙装置，其特征在于：所述筛选板(12)上开设有从外到内直径越来越大的漏沙子孔。5. The automatic high-precision sand screening device for synthetic production of building materials according to claim 1, characterized in that: the screening plate (12) is provided with sand leaking particles with larger and larger diameters from the outside to the inside. hole. 6.根据权利要求1所述的一种建筑材料合成生产用的自动高精度筛沙装置，其特征在于：所述喷气口(1301)的方向为水平方向，且均匀设置在喷气装置(13)的上部。6. The automatic high-precision sand screening device for synthetic production of building materials according to claim 1, characterized in that: the direction of the air jet port (1301) is a horizontal direction, and is evenly arranged on the air jet device (13) the upper part. 7.根据权利要求1所述的一种建筑材料合成生产用的自动高精度筛沙装置，其特征在于：所述筛选板(12)上开设有与喷气装置(13)相适应的孔。7 . The automatic high-precision sand screening device for synthetic production of building materials according to claim 1 , wherein the screening plate ( 12 ) is provided with holes adapted to the air jet device ( 13 ). 8 . 8.根据权利要求1所述的一种建筑材料合成生产用的自动高精度筛沙装置，其特征在于：所述左右线圈(9)的电流方向不同，且左右磁块(2103)的磁场方向也不同。8. The automatic high-precision sand screening device for synthetic production of building materials according to claim 1, characterized in that: the current directions of the left and right coils (9) are different, and the magnetic field directions of the left and right magnetic blocks (2103) are different. Also different.
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